/* Lakshmi Stone Crusher & Suppliers - Modern Core Theme CSS */

:root {
  --brand: #2563eb;
  --brand-hover: #1d4ed8;
  --brand-light: #eff6ff;
  --bg-main: #f8fafc;
  --bg-subtle: #f1f5f9;
  --bg-hover: #f1f5f9;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #3b82f6;
  --ring-focus: rgba(59, 130, 246, 0.15);

  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  --success-text: #065f46;

  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #92400e;

  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #991b1b;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* LAYOUT */
#app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: #0f172a; /* Slate 900 Dark Sidebar */
  border-right: 1px solid #1e293b;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform 0.2s ease;
}

.sidebar-header {
  height: 64px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid #1e293b;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
}

.nav-section-label, .nav-group-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
  padding: 8px 12px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: #94a3b8;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 2px;
  transition: all 0.12s ease;
}

.nav-item:hover {
  background: #1e293b;
  color: #f8fafc;
}

.nav-item.active {
  background: #2563eb;
  color: #ffffff;
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid #1e293b;
  background: #0f172a;
}

.main-content {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.header {
  height: 64px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.page-content {
  padding: 24px;
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* CARDS */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  padding: 20px;
}

.card-header {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 13px;
  transition: all 0.12s ease;
  white-space: nowrap;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary { background: var(--brand); color: white; border-color: var(--brand); }
.btn-primary:hover { background: var(--brand-hover); border-color: var(--brand-hover); }

.btn-secondary { background: white; border-color: var(--border); color: var(--text-primary); }
.btn-secondary:hover { background: var(--bg-subtle); border-color: var(--border-hover); }

.btn-danger { background: var(--danger); color: white; border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-text); border-color: var(--danger-text); }

.btn-success { background: var(--success); color: white; border-color: var(--success); }
.btn-success:hover { background: var(--success-text); border-color: var(--success-text); }

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-subtle); color: var(--text-primary); }

.btn-sm { padding: 4px 10px; font-size: 12px; }

/* FORMS */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 13.5px;
  background: white;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--ring-focus);
}

/* TABS */
.tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 16px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-subtle);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.tab-btn.active {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

/* BADGES */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 11.5px;
}

.badge-paid, .badge-full { background: var(--success-light); color: var(--success-text); border: 1px solid var(--success-border); }
.badge-partial { background: var(--warning-light); color: var(--warning-text); border: 1px solid var(--warning-border); }
.badge-due { background: var(--danger-light); color: var(--danger-text); border: 1px solid var(--danger-border); }
.badge-pending { background: var(--bg-subtle); color: var(--text-secondary); border: 1px solid var(--border); }
.badge-admin { background: var(--brand-light); color: var(--brand); border: 1px solid #bfdbfe; }

/* TABLES */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  padding: 10px 14px;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 10px 14px;
  font-size: 13.5px;
  color: var(--text-primary);
  border-bottom: 1px solid #f3f4f6;
}

.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover td { background: var(--bg-hover); }

/* WIZARD STEPS */
.steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  background: white;
  padding: 14px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.step-item.active {
  color: var(--brand);
  font-weight: 700;
}

.step-item.completed {
  color: var(--success);
  font-weight: 600;
}

.step-number {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.step-item.active .step-number {
  background: var(--brand);
  color: white;
}

.step-item.completed .step-number {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
}

/* MODALS */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border);
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body { padding: 20px; }

.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background: var(--bg-subtle);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .page-content { padding: 16px; }
}

/* PRINT MEDIA OVERRIDES */
@media print {
  .sidebar,
  .header,
  .no-print,
  .btn,
  #toast-container,
  form,
  select,
  input,
  button {
    display: none !important;
  }

  .print-only {
    display: block !important;
  }

  .main-content {
    margin-left: 0 !important;
  }

  .page-content {
    padding: 0 !important;
    max-width: none !important;
  }

  body {
    background: white !important;
    font-size: 10pt;
    color: #000 !important;
  }

  .card {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .card-header {
    border-bottom: 1px solid #ddd !important;
    padding-bottom: 6px !important;
    margin-bottom: 10px !important;
  }

  .table-container {
    border: 1px solid #ccc !important;
    border-radius: 0 !important;
  }

  .table th, .table td {
    padding: 6px 8px !important;
    font-size: 9pt !important;
  }

  .bill-print-container {
    width: 100% !important;
    max-width: 210mm !important;
    margin: 0 auto !important;
  }

  .due-person-card {
    border: 1px solid #cbd5e1 !important;
    border-radius: 8px !important;
    margin-bottom: 16px !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }
}